Physical and chemical adsorption respond differently with a rise in temperature. What is this difference and why is it so? lt brgt

Explanation

Both physical and chemical adsorption are of exothermic nature. The exlent of adsorptin is likely to decrease with rise in temperature. However, in chemical adsorption, the bonds present in the reactant species are to cleave initially and this if followed by adsorption. Since bond cleavage requires some energy, the chemical adsorption initially increase with rise in temperature and then decreases. Physicle adsorption however, decreases with rise in temperature. For details consult Section 5.